If you build a system that can regulate and generate that much energy you will earn and store it
That's why people who steal or fall into luck often don't preserve it.
You may think you're worth a billion but the amount of energy needed to accumulate is large. Sometimes people make more because they work smarter maximizing their output.
Sometimes it's simply nepotism, but that is anenergy exchange too. It all has a cost. But nepotism can come with the inability to store energy.